Question

what is BILLION??? please answer

Answer 1

A billion is a number with two distinct definitions: 1,000,000,000, i.e. one thousand million, or 10⁹, as defined on the short scale. This is now the meaning in both British and American English. Historically, in British English, 1,000,000,000,000, i.e. one million million, or 10¹², as defined on the long scale

Answer 2

1,000,000,000 (one billion, short scale; one thousand million or milliard, yard, long scale) is the natural number following 999,999,999 and preceding 1,000,000,001. One billion can also be written as b or bn. In scientific notation, it is written as 1 × 109.